HEART ANATOMY
This organ pumps blood throughout the body.
What is the heart?
Blood that is rich in oxygen is called this.
What is oxygenated blood?
This system controls the heartbeat.
What is the electrical conduction system?
These blood cells carry oxygen.
What are red blood cells?
Regular exercise generally makes the heart do this.
What is beat more efficiently?
The two upper chambers of the heart are called these.
What are the atria?
The vessel that carries blood from the heart to the lungs.
What is the pulmonary artery?
The natural pacemaker of the heart.
What is the sinoatrial (SA) node?
The largest blood vessel in the body.
What is the aorta?
This substance can clog arteries when levels are too high.
What is cholesterol?
The thick-walled chamber that pumps blood to the entire body.
What is the left ventricle?
Blood enters the heart through these types of blood vessels.
What are veins?
This node slows the electrical signal before it reaches the ventricles.
What is the atrioventricular (AV) node?
These tiny blood vessels allow gas exchange with tissues.
What are capillaries?
A blockage of blood flow to the heart muscle causes this.
What is a heart attack?
These structures prevent blood from flowing backward in the heart.
What are valves?
The correct order of blood flow through the heart begins with this chamber.
What is the right atrium?
These fibers spread electrical signals throughout the ventricles.
What are Purkinje fibers?
This component of blood helps with clotting.
What are platelets?
Smoking increases the risk of this heart-related disease.
What is coronary artery disease?
This wall separates the left and right sides of the heart.
What is the septum?
This vessel carries oxygenated blood from the lungs back to the heart.
What are the pulmonary veins?
An irregular heartbeat is called this.
What is an arrhythmia?
High blood pressure is medically known as this.
What is hypertension?
This lifestyle factor helps lower resting heart rate and blood pressure.
What is regular physical activity?